Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
复制标题
通过耦合非局部孔隙力学模型研究非饱和土的无导向开裂
DOI:
10.1061/9780784484050.032
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Song, Xiaoyu
中科院分区:
文献类型:
--
作者:
Menon, Shashank;Song, Xiaoyu
We present a computational nonlocal poromechanics framework for modeling unguided cracking in unsaturated soils. In this mathematical model, the initiation and propagation of cracks in unsaturated soils is autonomous and modeled through a novel fracture criterion considering solid-fluid coupling effects. The nonlocal coupled poromechanics model is implemented numerically using an implicit fractional step algorithm in which the coupled problem is transformed into two sub-problems (i.e., mechanical and fluid flow). First, the mechanical sub-problem is solved using Newton’s method with an explicit predictor of water pressure. Second, the sub-problem of fluid flow is solved using Newton’s method in the updated solid configuration. Two numerical examples are presented to demonstrate the robustness of this proposed computational nonlocal poromechanics framework for modeling arbitrary cracking in unsaturated soils.
登录
查看更多内容
DOI:
10.1016/j.cma.2021.113932
发表时间:
2020-10
期刊:
ArXiv
影响因子:
--
作者:
Shashank Menon;Xiaoyu Song
通讯作者:
Shashank Menon;Xiaoyu Song
影响因子:
5.7
作者:
Xiaoyu Song;Shashank Menon
通讯作者:
Xiaoyu Song;Shashank Menon
影响因子:
2.7
作者:
Shashank Menon;Xiaoyu Song
通讯作者:
Shashank Menon;Xiaoyu Song
DOI:
10.1080/19648189.2020.1797889
发表时间:
2021
影响因子:
2.1
作者:
Menon, Shashank;Song, Xiaoyu
通讯作者:
Song, Xiaoyu